Primeros datos de la nematofauna edáfica del Campus Universitario de Burjassot (Valencia, España)

Abstract

It has been carried out a study on the nematode fauna of the grass (Lolium perenne L.) of the University Campus of Burjassot (Valencia), to determine the possible presence of species that could cause damage in the garden. They were identified at specific level the possible agents of these lesions, such as: Criconema mutabile 1936) Raski & Luc, 1984 (Criconematoidea: Criconematidae), Paratylenchus arculatus Luc & de Guiran, 1962 (Criconematoidea: Tylenchulidae), Helicotylenchus microlobus Perry, 1959 (Tylenchoidea: Hoplolaimidae), Tylenchorhynchus clarus Allen, 1955 (Tylenchoidea: Belonolaimidae) and Pratylenchus hexincisus Taylor and Jenkins, 1957 (Tylenchoidea: Pratylenchidae). Although their individual population densities did not exceed the damage thresholds, they could be, acting as a whole, responsible for the damages observed on the grass. The helminth communities of the edaphic nematodes are also studied by means of samples taken in three consecutive years (2013, 2014 and 2015) and a sample around the roots obtained in 2015. It is possible to observe a soil evolution in which it changes from a trophic network in a maturation state and with a certain structure, to a degraded, impoverished and conductive network, with a considerable increase of plant parasitic nematodes.